DayZ Graphics Glitch..!NEED HELP!

[Manos Kouts]

Recently,a problem created from nowhere...While I'm playing DayZ at normal quality,the game is running without problem,and suddenly it freezes for 1-2 sec,and the graphics are getting horrible,if that make sense..My fps drop to 10,I'm lagging,and if i enter a house,the walls disappears,and i have to restart the game over and over again.I have never seen that problem before at any forum/videos on YouTube...All the other games run fine without any problems.if u cant understand but you want to help.i can make a video or send u screenshot about my problem.
Also,i have put set launch options to run game smoother but didn't work,and i have changed some settings at game files that i saw at the forums,didn't work either!
I have tried to uninstall the game twice but didn't work again...

PC SPECS :
Intel Pentium G3220 dual core 3.0GHz
Hyper X Red 4GB
ASUS R7 240 2GB
MSI H81N-E33
SL-500A 500W PSU

Thanks..

 

[Archgaull]

Well, the biggest issue is your CPU. DayZ is CPU heavy, and on top of that poorly optimized. The pentium, not a horrible CPU, is most definitely high end.

 

[Manos Kouts]

First,i was running the game without graphic card,the game was running good,when i bought the graphic card.the problem appeared.Can u think want it can be?

Thanks for your time..